Sorry @alan33921 ! It was a typo …
$w('#dataset1').setFieldValue({searchBar: result});
Just add the curly braces.
Regarding the second error, you just need to change the function into an async one, I don’t know what function the query is inside of, but generally you need to add the async keyword to the function.
export async function button_onClick(event) {...}
$w('#element').onClick(async(event) => {...})
$w.onReady(async function() => {...})
$w.onReady(async() => {...})
These are examples to give you better understanding.